Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_6.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD") Notification: Performance of loadModel(Buildings): time 4.473/4.473, allocations: 431.3 MB / 445.8 MB, free: 5.418 MB / 346.7 MB Notification: Performance of FrontEnd - loaded program: time 3.206e-05/3.208e-05, allocations: 4 kB / 0.5354 GB, free: 14.81 MB / 458.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.6564/0.6565, allocations: 98.71 MB / 0.6318 GB, free: 11.96 MB / 0.5105 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD): time 0.03448/0.691, allocations: 14.16 MB / 0.6457 GB, free: 13.75 MB / 0.5261 GB Notification: Performance of NFInst.instExpressions: time 0.02972/0.7208, allocations: 5.576 MB / 0.6511 GB, free: 8.156 MB / 0.5261 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002022/0.7229, allocations: 51.88 kB / 0.6512 GB, free: 8.105 MB / 0.5261 GB Notification: Performance of NFTyping.typeComponents: time 0.006459/0.7294, allocations: 369.8 kB / 0.6515 GB, free: 7.742 MB / 0.5261 GB Notification: Performance of NFTyping.typeBindings: time 0.004388/0.7339, allocations: 0.728 MB / 0.6522 GB, free: 7.012 MB / 0.5261 GB Notification: Performance of NFTyping.typeClassSections: time 0.0118/0.7457, allocations: 0.7524 MB / 0.653 GB, free: 6.258 MB / 0.5261 GB Notification: Performance of NFFlatten.flatten: time 0.0102/0.756, allocations: 1.712 MB / 0.6546 GB, free: 4.543 MB / 0.5261 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01377/0.7698, allocations: 5.496 MB / 0.66 GB, free: 14.99 MB / 0.5417 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002607/0.7725, allocations: 0.939 MB / 0.6609 GB, free: 14.05 MB / 0.5417 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003704/0.7762, allocations: 1.407 MB / 0.6623 GB, free: 12.64 MB / 0.5417 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002587/0.7789, allocations: 0.5774 MB / 0.6629 GB, free: 12.06 MB / 0.5417 GB Notification: Performance of NFPackage.collectConstants: time 0.001169/0.7801, allocations: 156 kB / 0.663 GB, free: 11.91 MB / 0.5417 GB Notification: Performance of NFScalarize.scalarize: time 0.002875/0.783, allocations: 1.481 MB / 0.6645 GB, free: 10.43 MB / 0.5417 GB Notification: Performance of NFVerifyModel.verify: time 0.001534/0.7846, allocations: 256 kB / 0.6647 GB, free: 10.18 MB / 0.5417 GB Notification: Performance of NFConvertDAE.convert: time 0.009497/0.7941, allocations: 5.496 MB / 0.6701 GB, free: 4.668 MB / 0.5417 GB Notification: Performance of FrontEnd - DAE generated: time 5.7e-06/0.7941, allocations: 0 / 0.6701 GB, free: 4.668 MB / 0.5417 GB Notification: Performance of FrontEnd: time 3.416e-06/0.7942, allocations: 4 kB / 0.6701 GB, free: 4.664 MB / 0.5417 GB Notification: Performance of Transformations before backend: time 0.0002173/0.7944, allocations: 0 / 0.6701 GB, free: 4.664 MB / 0.5417 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 863 * Number of variables: 863 Notification: Performance of Generate backend data structure: time 0.01015/0.8046, allocations: 2.694 MB / 0.6727 GB, free: 1.91 MB / 0.5417 GB Notification: Performance of prepare preOptimizeDAE: time 5.646e-05/0.8046, allocations: 12.03 kB / 0.6727 GB, free: 1.898 MB / 0.5417 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0237/0.8283, allocations: 2.411 MB / 0.6751 GB, free: 15.48 MB / 0.5573 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.006754/0.8351, allocations: 1.947 MB / 0.677 GB, free: 13.48 MB / 0.5573 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003481/0.8355, allocations: 230.1 kB / 0.6772 GB, free: 13.26 MB / 0.5573 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001631/0.8372, allocations: 304 kB / 0.6775 GB, free: 12.96 MB / 0.5573 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0231/0.8603, allocations: 6.347 MB / 0.6837 GB, free: 6.5 MB / 0.5573 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001085/0.8605, allocations: 7.938 kB / 0.6837 GB, free: 6.492 MB / 0.5573 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0007375/0.8612, allocations: 124 kB / 0.6838 GB, free: 6.371 MB / 0.5573 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0008008/0.8621, allocations: 313.3 kB / 0.6841 GB, free: 6.062 MB / 0.5573 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.02737/0.8894, allocations: 6.554 MB / 0.6905 GB, free: 15.49 MB / 0.573 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05029/0.9398, allocations: 25.1 MB / 0.715 GB, free: 4.258 MB / 0.5886 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01538/0.9552, allocations: 5.413 MB / 0.7203 GB, free: 14.48 MB / 0.6042 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0005491/0.9558, allocations: 135 kB / 0.7204 GB, free: 14.34 MB / 0.6042 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.669e-05/0.9559, allocations: 72.44 kB / 0.7205 GB, free: 14.26 MB / 0.6042 GB Notification: Performance of pre-optimization done (n=230): time 5.45e-06/0.9559, allocations: 4 kB / 0.7205 GB, free: 14.25 MB / 0.6042 GB Notification: Performance of matching and sorting (n=311): time 0.2224/1.178, allocations: 31.04 MB / 0.7508 GB, free: 15.04 MB / 0.6355 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0002228/1.179, allocations: 247.8 kB / 0.7511 GB, free: 14.75 MB / 0.6355 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003565/1.182, allocations: 1.095 MB / 0.7521 GB, free: 13.64 MB / 0.6355 GB Notification: Performance of collectPreVariables (initialization): time 0.000907/1.183, allocations: 73.7 kB / 0.7522 GB, free: 13.56 MB / 0.6355 GB Notification: Performance of collectInitialEqns (initialization): time 0.001691/1.185, allocations: 1.238 MB / 0.7534 GB, free: 12.3 MB / 0.6355 GB Notification: Performance of collectInitialBindings (initialization): time 0.002295/1.187, allocations: 1.043 MB / 0.7544 GB, free: 11.25 MB / 0.6355 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005933/1.188, allocations: 60 kB / 0.7545 GB, free: 11.19 MB / 0.6355 GB Notification: Performance of setup shared object (initialization): time 0.0003426/1.188, allocations: 440.7 kB / 0.7549 GB, free: 10.75 MB / 0.6355 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.01129/1.199, allocations: 2.731 MB / 0.7576 GB, free: 8.016 MB / 0.6355 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0126/1.212, allocations: 3.412 MB / 0.7609 GB, free: 4.344 MB / 0.6355 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01239/1.225, allocations: 3.146 MB / 0.764 GB, free: 1.18 MB / 0.6355 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.232e-05/1.225, allocations: 8 kB / 0.764 GB, free: 1.172 MB / 0.6355 GB Notification: Performance of matching and sorting (n=412) (initialization): time 0.0479/1.273, allocations: 10.45 MB / 0.7742 GB, free: 6.66 MB / 0.6511 GB Notification: Performance of prepare postOptimizeDAE: time 0.002927/1.276, allocations: 7.059 MB / 0.7811 GB, free: 15.04 MB / 0.6667 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.404e-05/1.276, allocations: 23.94 kB / 0.7811 GB, free: 15.02 MB / 0.6667 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.03181/1.307, allocations: 5.252 MB / 0.7862 GB, free: 9.754 MB / 0.6667 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.008196/1.316, allocations: 0.9321 MB / 0.7871 GB, free: 8.82 MB / 0.6667 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0482/1.364, allocations: 17.39 MB / 0.8041 GB, free: 7.262 MB / 0.6823 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007242/1.371, allocations: 0.5147 MB / 0.8046 GB, free: 6.746 MB / 0.6823 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0008633/1.372, allocations: 143.9 kB / 0.8048 GB, free: 6.605 MB / 0.6823 GB Notification: Performance of prepare postOptimizeDAE: time 1.57e-05/1.372, allocations: 4 kB / 0.8048 GB, free: 6.602 MB / 0.6823 GB Warning: The linear system: 1 : line2.i3[1] - transformer.conv2.terminal_p.i[1] = -transformer.conv3.terminal_p.i[1] 2 : line2.i2[1] - transformer.conv1.terminal_p.i[1] = -transformer.conv2.terminal_p.i[1] 3 : line2.i1[1] - transformer.conv3.terminal_p.i[1] = -transformer.conv1.terminal_p.i[1] [ 1.0 , 0.0 , -1.0 ; 0.0 , -1.0 , 1.0 ; -1.0 , 1.0 , 0.0 ] * [ transformer.conv3.terminal_p.i[1] ; transformer.conv1.terminal_p.i[1] ; transformer.conv2.terminal_p.i[1] ] = [ -line2.i3[1] ; -line2.i2[1] ; -line2.i1[1] ] might be structurally or numerically singular for variable transformer.conv2.terminal_p.i[1] since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : line2.i3[2] - transformer.conv2.terminal_p.i[2] = -transformer.conv3.terminal_p.i[2] 2 : line2.i1[2] - transformer.conv3.terminal_p.i[2] = -transformer.conv1.terminal_p.i[2] 3 : line2.i2[2] - transformer.conv1.terminal_p.i[2] = -transformer.conv2.terminal_p.i[2] [ -1.0 , 0.0 , 1.0 ; 0.0 , 1.0 , -1.0 ; 1.0 , -1.0 , 0.0 ] * [ transformer.conv2.terminal_p.i[2] ; transformer.conv1.terminal_p.i[2] ; transformer.conv3.terminal_p.i[2] ] = [ -line2.i3[2] ; -line2.i1[2] ; -line2.i2[2] ] might be structurally or numerically singular for variable transformer.conv3.terminal_p.i[2] since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : transformer.conv1.V2[2] = line2.v1_n[2] - line2.v2_n[2] 2 : transformer.conv3.V2[2] = line2.v3_n[2] - line2.v1_n[2] 3 : transformer.conv2.V2[2] = line2.v2_n[2] - line2.v3_n[2] [ 1.0 , 0.0 , -1.0 ; 0.0 , -1.0 , 1.0 ; -1.0 , 1.0 , 0.0 ] * [ line2.v2_n[2] ; line2.v3_n[2] ; line2.v1_n[2] ] = [ -transformer.conv1.V2[2] ; -transformer.conv3.V2[2] ; -transformer.conv2.V2[2] ] might be structurally or numerically singular for variable line2.v1_n[2] since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway. Warning: The linear system: 1 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1] 2 : transformer.conv3.V2[1] = line2.v3_n[1] - line2.v1_n[1] 3 : transformer.conv2.V2[1] = line2.v2_n[1] - line2.v3_n[1] [ 1.0 , 0.0 , -1.0 ; 0.0 , -1.0 , 1.0 ; -1.0 , 1.0 , 0.0 ] * [ line2.v2_n[1] ; line2.v3_n[1] ; line2.v1_n[1] ] = [ -transformer.conv1.V2[1] ; -transformer.conv3.V2[1] ; -transformer.conv2.V2[1] ] might be structurally or numerically singular for variable line2.v1_n[1] since U(3,3) = 0.0. It might be hard to solve. Compilation continues anyway. Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.6219/1.994, allocations: 9.457 MB / 0.814 GB, free: 159 MB / 0.6823 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001057/1.994, allocations: 22.09 kB / 0.814 GB, free: 159 MB / 0.6823 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.02071/2.015, allocations: 3.152 MB / 0.8171 GB, free: 159 MB / 0.6823 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.009558/2.025, allocations: 1.101 MB / 0.8182 GB, free: 159 MB / 0.6823 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.05172/2.076, allocations: 26.15 MB / 0.8437 GB, free: 141.2 MB / 0.6823 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.008697/2.085, allocations: 0.4983 MB / 0.8442 GB, free: 141.2 MB / 0.6823 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.00114/2.086, allocations: 139.8 kB / 0.8443 GB, free: 141.1 MB / 0.6823 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 81 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (270): * Single equations (assignments): 268 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(9,85.2%) 63} * Non-linear torn systems: 1 {9 63} Notification: Performance of prepare postOptimizeDAE: time 0.005247/2.092, allocations: 1.327 MB / 0.8456 GB, free: 140.5 MB / 0.6823 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001467/2.093, allocations: 197.9 kB / 0.8458 GB, free: 140.5 MB / 0.6823 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.05915/2.152, allocations: 10.69 MB / 0.8562 GB, free: 136.1 MB / 0.6823 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.72e-05/2.153, allocations: 29.94 kB / 0.8563 GB, free: 136.1 MB / 0.6823 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.238e-05/2.153, allocations: 16.28 kB / 0.8563 GB, free: 136.1 MB / 0.6823 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.75e-05/2.153, allocations: 23.77 kB / 0.8563 GB, free: 136 MB / 0.6823 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.07439/2.227, allocations: 15.97 MB / 0.8719 GB, free: 120.5 MB / 0.6823 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.879e-05/2.227, allocations: 11.94 kB / 0.8719 GB, free: 120.5 MB / 0.6823 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.008967/2.236, allocations: 0.7415 MB / 0.8726 GB, free: 119.7 MB / 0.6823 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.04128/2.278, allocations: 5.042 MB / 0.8776 GB, free: 114.7 MB / 0.6823 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.001012/2.279, allocations: 79.95 kB / 0.8776 GB, free: 114.6 MB / 0.6823 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.08249/2.361, allocations: 26.01 MB / 0.9031 GB, free: 88.3 MB / 0.6823 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.179e-05/2.361, allocations: 11.95 kB / 0.9031 GB, free: 88.29 MB / 0.6823 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.04064/2.402, allocations: 10.42 MB / 0.9132 GB, free: 77.49 MB / 0.6823 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002471/2.404, allocations: 0.7643 MB / 0.914 GB, free: 76.71 MB / 0.6823 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.00095/2.405, allocations: 60 kB / 0.914 GB, free: 76.65 MB / 0.6823 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.006522/2.412, allocations: 0.4991 MB / 0.9145 GB, free: 76.15 MB / 0.6823 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001292/2.413, allocations: 251 kB / 0.9148 GB, free: 75.91 MB / 0.6823 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0004265/2.414, allocations: 100.5 kB / 0.9149 GB, free: 75.81 MB / 0.6823 GB Notification: Performance of sorting global known variables: time 0.001667/2.415, allocations: 0.8796 MB / 0.9157 GB, free: 74.92 MB / 0.6823 GB Notification: Performance of sort global known variables: time 2.324e-06/2.415, allocations: 0 / 0.9157 GB, free: 74.92 MB / 0.6823 GB Notification: Performance of remove unused functions: time 0.007608/2.423, allocations: 1.691 MB / 0.9174 GB, free: 73.23 MB / 0.6823 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 34 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (166): * Single equations (assignments): 164 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(9,86.4%) 63} * Non-linear torn systems: 1 {9 63} Notification: Performance of Backend phase and start with SimCode phase: time 0.0007624/2.424, allocations: 181 kB / 0.9175 GB, free: 73.05 MB / 0.6823 GB Notification: Performance of simCode: created initialization part: time 0.04519/2.469, allocations: 11.99 MB / 0.9293 GB, free: 60.96 MB / 0.6823 GB Notification: Performance of simCode: created event and clocks part: time 1.347e-05/2.469, allocations: 0 / 0.9293 GB, free: 60.96 MB / 0.6823 GB Notification: Performance of simCode: created simulation system equations: time 0.01752/2.487, allocations: 4.495 MB / 0.9336 GB, free: 56.44 MB / 0.6823 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002235/2.489, allocations: 220.6 kB / 0.9339 GB, free: 56.22 MB / 0.6823 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.04872/2.538, allocations: 11.67 MB / 0.9452 GB, free: 44.42 MB / 0.6823 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003732/2.541, allocations: 2.686 MB / 0.9479 GB, free: 41.7 MB / 0.6823 GB Notification: Performance of simCode: alias equations: time 0.009169/2.551, allocations: 1.781 MB / 0.9496 GB, free: 39.91 MB / 0.6823 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001154/2.552, allocations: 155.3 kB / 0.9498 GB, free: 39.76 MB / 0.6823 GB Notification: Performance of SimCode: time 1.082e-06/2.552, allocations: 3.938 kB / 0.9498 GB, free: 39.76 MB / 0.6823 GB Notification: Performance of Templates: time 0.1609/2.713, allocations: 71.18 MB / 1.019 GB, free: 0.75 MB / 0.7136 GB